Web Develop

exportfs命令加入我们之前已经配置了nfs的共享目录，之后要增加更改或增加共享目录，我们需要更改配置文件，重启，如果远程客户端正在使用，此时就会一直挂载着，这时候就有问题以下操作在服务端上#vim /etc/exports //增加一行/tmp/ 192.168.37.0/24(rw,sync,no_root_squash) #exportfs -arv //不用重启nfs服务，配置文件就会生效#mount -t nfs -o nolock

The following methods can be treated as a specimen:1.Detailed source reference: http://www.jb51.net/yunying/28470.html, limit the number of times the IP address unit time AccessAnalysis: No one can access the same site 5 times a second, unless it is

When submitting with Ajax, the JSON should be in the form of a string;The content of the response, depending on the settings, may be in the form of an object, or it may be in the form of a string.If it is a string, it can be converted into an object

1. HTTP protocol1. What is the HTTP protocolHTTP, Hypertext Transfer Protocol (hypertext Transfer Protocol) is one of the most widely used network protocols on the Internet. All WWW documents must comply with this standard. HTTP was originally

Just changed the server system from CentOS to Ubuntu, after installing mysql,apache,php and WordPress, it is OK to open the homepage, but there is an error when opening the article page. Because of the use of custom fixed link settings, it is

Before writing JS More of the time also written deep copy, shallow copy, inherit what, there are custom monitoring events. But it took a long time to forget.The most recent deep copy used in the project is B = Json.parse (Json.stringify (a)), did

File Upload Progress Feedback, this requirement is now more and more common, such as large attachment mail. Prior to PHP5.4, we were able to do so through the capabilities provided by APC . Or you can use pecl extension uploadprogress to

1. Introduction of NuGet PackagesNlogNlog.Web.AspNetCore2. Add the Nlog configuration file1 XML version= "1.0" encoding= "Utf-8"?>2 Nlogxmlns= "Http://www.nlog-project.org/schemas/NLog.xsd"3 Xmlns:xsi= "Http://www.w3.org/2001/XMLSchema-instance"4

This section shows the various operators that can be used in PHP scripts.PHP arithmetic operators operator name Example Results + Addition $x + $y $x and $y summation -

Performance improvement principle: Reduce the time of file parsing.We all know that the program to run, there must be a compilation or parsing process, compiled or parsed after the code is the machine can run.While PHP is an analytic language, when

First Usecomposer require aliyuncs/oss-sdk-php安装插件Then join in the portal file. '/.. /vendor/aliyuncs/oss-sdk-php/autoload.php ';Add a method to the file upload class file.phpThese two files must be introduced.OSS \ ossclient ;OSS \ Core \

解决 php的session无法保存到redisThe session of PHP is written to the Redis configurationVim/etc/php-fpm.d/www.confuser = NginxGroup = NginxPhp_value[session.save_handler] = RedisPhp_value[session.save_path] = ' tcp://192.168.1.2:6688

FormData uploads files, Form submission: Test file Uploading through the Rest interface specify the file name: upload a file: keyword 1: keyword 2: keyword 3: However, page Jump is required. Ajax: $.ajax({ url :

Use of comparison operators in JavaScript The basic operation procedure of the comparison operator is: first compare the operands, which can be numbers or strings, and then return a Boolean value true or false. The following table lists the commonly

Interrupt method for stopping Java threads I have recently learned Java multithreading-related knowledge points. Many experts on the Internet have provided detailed answers to the thread stop methods, here, I will remind myself of the Interrupt

Java Network Programming-TCP communication and simple File Upload Functions TCP communication needs to be clarified: Tcp communication is connection-oriented. You need to start the server and then the client. Both the client and the server must

Handling of JVM class loading mechanism and class cache Problems When a Java project is started, JVM will find the main method, load the class file and the class file in the referenced jar package based on the call between objects (The steps include

Linux installation is related to software configuration. Precautions for installing CentOS CentOS is the best choice for servers. After strong shutdown, the system cannot be started normally after restart, and the system will not be able to

Bbr-based cloud disk speed-up practices Female Declaration The speed of cloud disks is a hard indicator in the industry, and is a product reputation and image. Traditional acceleration methods are mostly based on proxy servers, and suitable proxies

When the hp computer is turned on, it shows that it is preparing for automatic repair. If it cannot enter the system, it cannot be hp. HP machine solution: When the instance is shut down, press the power button to start the instance. Immediately,